On Wed, 15 Oct 2008, Michael Deutschmann wrote:
The optimal lockdown time would depend on the reaction time of the
blacklists you use. I'm not sure what that is, but it would be
straightforward enough to research.
In our case, we use our own reputation based blacklist. There are
too many false positives with Spam Haus and the like. The greylisting
is serving its intended purpose of blocking the spammers with old
software.
I am working on tracking reputation of NS servers. Unlike whois, that info
is readily available and might help with throwaway domains.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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